Episode 213: Compose Runtime And Performance Android Developers Backstage podcast

58:08

Software Engineers Dustin Lam and Yigit Boyar join host Tor Norbye to chat all about Kotlin Multiplatform. Resources: Tor’s Bluesky → https://goo.gle/4iLXEAg Yigit’s Bluesky → https://goo.gle/4dmsYVj

Android Developers Backstage

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Linting on the Side of Caution: Safety & Security 50:31

5 weeks ago50:31

50:31

What is app safety for Android? What is the Android team working on to ensure developers and users alike enjoy safe and reliable apps? Watch along as Tor Norbye, Chet Haase, Romain Guy, Theresa Khuu, Naheed Vora take a deep dive backstage and discuss what’s new in the Android safety space. Resources: Enhanced Tools for Secure & Efficient Development → https://goo.gle/42lo3i8 Watch more Android Developers Backstage → https://goo.gle/adb-podcast Subscribe to Android Developers → https://goo.gle/AndroidDevs #Featured #Android #AndroidDevelopersBackstage Speakers: Tor Norbye, Chet Haase, Romain Guy, Theresa Khuu, Naheed Vora…

Android Developers Backstage

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Episode 213: Compose runtime and performance 56:56

11 weeks ago56:56

56:56

In this episode, Tor and Romain chat with Leland and Chuck from the Compose team about performance -- recent optimizations, upcoming optimizations, and challenges. Leland: @intelligibabble.bsky.social Chuck: @chuckjaz.bsky.social Tor: @tornorbye.bsky.social Romain: @romainguy , @romainguy.dev , romainguy@androiddev.social Catch videos on YouTube → https://goo.gle/adb-podcast Subscribe to Android Developers → https://goo.gle/AndroidDevs #Featured #Compose #AndroidDevelopersBackstage…

Android Developers Backstage

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Episode 212: Happy birthday, Android Studio! 1:00:50

16 weeks ago1:00:50

1:00:50

In this episode Chet, Romain and Tor chat with Xav and Jamal from the Android Studio team to talk about the history of Android’s IDE. Chapters: Intro (00:00) Topic of the day - Android Studio releases (00:59) What was before Android studio? (2:33) Eclipse (7:22) Jamal joins Android (13:56) Android studio 1.0 (16:40) Android studio 1.0 - launch (21:56) Android studio 3.0 (25:17) Differences after the Kotlin announcement (28:02) Studio 2.1 big complaints (31:32) Code names in Android (33:23) Favorite versions of Android Studio (38:01) Team growth 2010 - 2017 (41:22) Android Studio 4.0 - motion editor (43:26) Gradle (45:27) Profilers (53:06) Regrets? (54:04) Favorite features? (56:37) Wrap up (59:53) Links: Android Studio → https://goo.gle/36F8fcS Android Studio 1.0 → https://goo.gle/4h4X68z Announcing Android Studio → https://goo.gle/3EapKGH Jamal: https://www.linkedin.com/in/jamaleason Xavier: ducrohet.bsky.social Romain: @romainguy , @romainguy.dev , romainguy@androiddev.social Tor: threads.net/@tor.norbye and tornorbye@androiddev.social Chet: @chethaase , threads.net/@chet.haase , and chethaase@androiddev.social Catch videos on YouTube → https://goo.gle/adb-podcast Subscribe to Android Developers → https://goo.gle/AndroidDevs #Featured #Android #AndroidDevelopersBackstage…

Android Developers Backstage

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Episode 211: Rules about performance tools 1:10:15

25 weeks ago1:10:15

1:10:15

In this episode Chet, Romain and Tor chat with Shai Barack about how the Android platform team studies performance and understands system health - and what is system health anyway? We talk about measuring performance, deciding trade-offs, and our favorite tools such as Perfetto, Compiler Explorer, and Android Studio's Memory Profiler. Chapters: Intro (00:00) System health (0:27) Efforts to make apps more efficient (3:35) Telemetry data (5:59) Trade offs between long battery life and good performance (8:21) Scheduling groups (10:38) Static drain (13:32) Collaborating with App developers vs operating system (19:10) High refresh rates (23:26) Reach vs engagement (32:02) What tools does your team use to optimize performance? (34:10) Godbolt.org (37:09) Demystifying (39:39) The best tools are multi-player (43:52) R8 or R-Not? (45:42) Optimizing for feature sets (48:05) Tools, not Rules (50:08) What are the tools I should be aware of as an app developer looking to upscale performance? (54:36) Allocation tracker (55:37) Open source tools (57:08) Useful resources for devs to understand various tools (59:04) Final thoughts (1:06:19) Links: Compiler Explorer → https://goo.gle/3Zbq6DV Perfetto → https://goo.gle/3OtD3UK and https://goo.gle/3B3S3p5 Tools, not Rules → https://goo.gle/416CyY7 Shai: Romain: @romainguy , threads.net/@romainguy , romainguy@androiddev.social Tor: threads.net/@tor.norbye and tornorbye@androiddev.social Chet: @chethaase , threads.net/@chet.haase , and chethaase@androiddev.social Catch videos on YouTube → https://goo.gle/adb-podcast Subscribe to Android Developers → https://goo.gle/AndroidDevs…

Android Developers Backstage

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Episode 210: Studio Jewelry 50:38

29 weeks ago50:38

50:38

In this episode Chet, Romain and Tor chat with Sebastiano about how the Android Studio team builds UIs. We talk about how Compose for Desktop is used in parts of Android Studio and how the Compose Markdown renderer available in the Jewel library makes Studio Bot tick. Chapters: Intro (00:00) Android Dev UX team (00:39) What kind of libraries and languages are used to build Android studio? (1:52) Swing (2:53) Reactive and declarative programming models (8:25) SKIA for Kotlin (10:01) Jetpack Compose widgets (11:54) Jewel (13:07) Text rendering across platforms (15:51) Differences in behaviors (17:40) Support for markdown files (20:26) What is markdown? (21:25) Swing and html (25:45) Selection handling in StudioBot (28:46) Boosting productivity with Compose (30:40) Standalone vs plugin artifacts (34:29) The difference between Jewel & Swing (35:30) HTML vs Markdown (39:31) Markdeep (41:53) Jewel's Markdown API (43:46) Where to find Jewel? (46:54) Sebastiano’s podcast - Code with the Italians (47:34) Final thoughts (49:13) Links: Jetpack Compose Compose Multiplatform , for Desktop Jewel Jewel Markdown Renderer Sebastiano: https://github.com/rock3r , https://codewiththeitalians.it/ Romain: @romainguy , threads.net/@romainguy , romainguy@androiddev.social Tor: threads.net/@tor.norbye and tornorbye@androiddev.social Chet: @chethaase , threads.net/@chet.haase , and chethaase@androiddev.social Catch videos on YouTube → https://goo.gle/adb-podcast Subscribe to Android Developers → https://goo.gle/AndroidDevs…

Android Developers Backstage

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Episode 209: Compose animations 59:36

35 weeks ago59:36

59:36

In this episode Chet, Romain and Tor chat with Doris Liu from the Compose team about animations in Compose -- covering everything from the basic primitives up to the recently added Shared Element Transitions. Chapters: Intro (00:00) Animation capabilities of Compose (1:06) Different types of animation specs (3:43) Layers of functionality, transitions (7:49) TargetBasedAnimation (9:48) Vectors & velocity of color change (12:43) Second layer parallel to animation spec (16:39) Animation interruptions (18:48) Motion layout problem-solving (20:19) Both scale and move in question (25:45) Different mental models for layout animation in Compose vs. View (26:20) Shared element (31:05) Are there things you wish more people were aware of? (34:19) What's the tooling story for this? (41:57) What is Look Ahead? (43:16) All software is regret (48:49) New API: Modifier.animateBounds (51:52) How to reach Doris – leave a comment (55:57) Motion Frame of Reference Placement (57:29) Wrap up (59:10) Links: Shared element tutorial → https://goo.gle/3XrGYp5 Shared element talk → https://goo.gle/47tm3qm A quick guide to compose animations → https://goo.gle/3Tm853p The API layers except the highest level APIs we chatted about in the podcast → https://goo.gle/3MGsiNE Doris: @doris4lt Romain: @romainguy , threads.net/@romainguy , romainguy@androiddev.social Tor: threads.net/@tor.norbye and tornorbye@androiddev.social Chet: @chethaase , threads.net/@chet.haase , and chethaase@androiddev.social Catch more Android Developers Backstage on YouTube → https://goo.gle/adb-podcast Subscribe to Android Developers YouTube → https://goo.gle/AndroidDevs…

Android Developers Backstage

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Episode 208: Micro optimizations 51:12

43 weeks ago51:12

51:12

In this episode Tor and Romain find themselves without a guest and decide to chat about micro optimizations and writing custom tools. Tor and Romain Chapters: Intro (00:00) Micro optimizations (00:32) Kotlin explorer (3:25) Avoiding object allocations (6:49) Code Inefficiencies (8:10) Compilers (12:13) Understand assembly with AI (18:39) Layout opt (21:20) Programmers writing tools (21:52) char.isBlank (25:35) Lint checks (27:59) Companion objects (29:40) Java assertion mechanism (32:00) Hash maps (35:13) When to micro optimize and when not to (43:46) Benchmarking (47:26) New optimizations (48:46) Wrap up (50:46) Romain: @romainguy , threads.net/@romainguy , romainguy@androiddev.social Tor: threads.net/@tor.norbye and tornorbye@androiddev.social Catch videos on YouTube → https://goo.gle/adb-podcast Subscribe to Android Developers → https://goo.gle/AndroidDevs…

Android Developers Backstage

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Episode 207: AI development assistance 52:20

47 weeks ago52:20

52:20

In this episode we talk with Kathy Korevec from the AIDA team at Google about AI assisted developer tools, such as Android Studio -- which is using Gemini AI models provided by AIDA. Romain, Kathy, and Tor Kathy: twitter.com/simpsoka Romain: @romainguy , threads.net/@romainguy , romainguy@androiddev.social Tor: threads.net/@tor.norbye and tornorbye@androiddev.social Check out → https://goo.gle/3wK4EM4 Catch videos on YouTube → https://goo.gle/adb-podcast Subscribe to Android Developers → https://goo.gle/AndroidDevs…

Android Developers Backstage

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Episode 206: Make it faster 1:00:52

51 weeks ago1:00:52

1:00:52

In this episode we cover ADB -- not "Android Developers Backstage", but "Android Debug Bridge", the technology powering device connections. Romain and Tor talk with Fabien Sanglard from the Android Studio team on his work to improve the debug stack -- including the new USB speed detection feature recently unveiled at Google I/O. Chapters: Intro (00:00) You may know Fabien from… (00:50) Applying relevant knowledge to Android Studio (3:28) Communicating with remote devices and debugging (12:18) Accommodating a debugger (13:55) Fixed protocols and how to work around (16:10) What other versions of ADB do you use to get the suite faster? (19:27) Other ways to make the debugger faster (20:38) The differences between USB cables (21:51) How to find the right cable (30:17) ADB over wifi (32:41) How to detect which usb port is faster on your laptop? (34:46) Complexity of new cables (36:57) Install time of APK’s (37:41) New ways of helping full stack devs (45:44) Final thoughts (49:19) Viewer questions (57:54) Romain: @romainguy , threads.net/@romainguy , romainguy@androiddev.social Tor: threads.net/@tor.norbye and tornorbye@androiddev.social Fabien: @fabynou , Check out → https://goo.gle/3wK4EM4 Catch videos on YouTube → https://goo.gle/adb-podcast Subscribe to Android Developers → https://goo.gle/AndroidDevs…

Android Developers Backstage

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Episode 205: Time for Playtime 46:50

1 year ago46:50

46:50

In this episode, Tor, Romain, and Chet talk with Aurash Mahbod from the Play Games team at Google -- covering trends in mobile games, challenges for Android games developers, console games, and more! Chapters: Intro (00:00) What’s Aurash working on currently? (02:40) How much is Play store providing users with content based on previous interests? (05:29) Longstanding games vs new games (08:34) Mobile gaming vs console (10:07) Are there stats on what type of games people are playing? (18:07) Difficulties and solutions for transitioning games from various devices (21:14) Movie corner - War Games (25:15) How does Play console help devs optimize engagement? (26:23) What is the breakdown of tools that devs actually use for games? (27:53) Reducing the backend costs for devs (30:18) Where does loyalty content surface? (34:28) Balancing add load (35:16) Cloud saves (38:18) Aurash’s history with Play store (42:18) Wrap up (42:58) Romain: @romaing uy, threads.net/@romainguy , romainguy@androiddev.social Tor: threads.net/@tor.norbye and tornorbye@androiddev.social Chet: @chethaa se, threads.net/@chet.haase , and chethaase@androiddev.social Aurash: https://twitter.com/aurash - @aurash Catch videos on YouTube → https://goo.gle/adb-podcast…

Android Developers Backstage

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Episode 204: Fan’otations 52:33

1 year ago52:33

52:33

In this episode, Tor, Romain, and Chet talk about one of Tor’s favorite topics: Lint! Specifically, we talk about Lint checks and the annotations that use them to enable better, more robust, and more self-documenting APIs. Lint: It’s not just for pockets anymore. Chapters: Intro (00:00) Lint checks for annotations (01:50) Lint checks in Android (05:38) Logic checks (07:34) Color representations (10:01) How does lint know the type of integer? (14:40) Kotlin annotations (17:19) Unsigned (20:10) HalfFloat (22:25) Thread annotations (25:12) @CallSuper (28:18) LayoutOpt (30:26) Lint checks in AndroidX (32:00) Restrict to annotation (36:45) Writing your own custom Lint checks (39:51) Lint testing framework (43:26) Kotlin buildList Lint check example (45:25) @Discouraged (48:15) Wrap up (50:08) @Deprecated Chet (50:50) Romain: @romainguy , threads.net/@romainguy , romainguy@androiddev.social Tor: threads.net/@tor.norbye and tornorbye@androiddev.social Chet: @chethaase , threads.net/@chet.haase , and chethaase@androiddev.social Catch videos on YouTube → https://goo.gle/adb-podcast Subscribe to Android Developers → https://goo.gle/AndroidDevs…

Android Developers Backstage

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Episode 203: (W)rap 58:19

1 year ago58:19

58:19

In this episode, Tor, Romain, and Chet talk about some of the many things that happened this year in the world of Android development, including new devices and form factors, tool improvements, AndroidX features and libraries, and Jetpack Compose releases. And any tech podcast would be remiss without mentioning AI/ML, so we talk about that too. Tor, Romain and Chet Chapters: Intro (00:00) Google engineers vs Android (00:57) Big changes of 2023 intro (3:03) AI (3:38) Programming with AI (5:08) Writing with AI (8:52) New devices from Android - Pixel fold (12:31) Pixel watch (18:50) Bard (19:37) Changes in device release times (20:23) Major changes in devices vs incremental updates (21:42) Camera (22:40) Platform developments - mainline modules (24:03) More testing for Android (25:12) Flaky tests (26:55) Jetpack compose features (32:32) RTO (38:00) Shapes library and KMP (42:42) Final thoughts on big events of 2023 (45:03) Studio build improvements (46:43) Baseline profiles (49:21) Listener mail (50:45) Where has Chet been? (52:46) Metalava question (55:46) Wrap up wrap up (57:00) Romain: @romainguy , threads.net/@romainguy , romainguy@androiddev.social Tor: threads.net/@tor.norbye and tornorbye@androiddev.social Chet: @chethaase , threads.net/@chet.haase , and chethaase@androiddev.social Catch videos on YouTube → https://goo.gle/adb-podcast Subscribe to Android Developers → https://goo.gle/AndroidDevs…

Android Developers Backstage

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Episode 202: AndroidX, Gradle and Metalava 53:56

2 years ago53:56

53:56

In this episode, Tor and Romain chat with Aurimas Liutikas from the AndroidX team. Topics include performance tuning the AndroidX Gradle builds using configuration caching, local caching and remote caching, as well as tracking API compatibility using the Metalava tool. Aurimas, Romain and Tor Romain: @romainguy , threads.net/@romainguy , romainguy@androiddev.social Tor: threads.net/@tor.norbye and tornorbye@androiddev.social Aurimas: androiddev.social/@Aurimas and www.liutikas.net/blog-posts Catch videos on YouTube → https://goo.gle/adb-podcast Subscribe to Android Developers → https://goo.gle/AndroidDevs…

Android Developers Backstage

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Episode 201: Firebase in Android Studio 44:53

2 years ago44:53